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package com.sun.jdo.api.persistence.enhancer.classfile;

/**
 * ClassMember is a common base class for ClassMethod and ClassField
 */

abstract public class ClassMember implements VMConstants {

  /* public accessors */

  /**
   * Is the member static?
   */
  final public boolean isStatic() {
    return (access() & ACCStatic) != 0;
  }

  /**
   * Is the member final?
   */
  final public boolean isFinal() {
    return (access() & ACCFinal) != 0;
  }

  /**
   * Turn on or off the final qualifier for the member.
   */
  public void setIsFinal(boolean newFinal) {
    if (newFinal)
      setAccess(access() | ACCFinal);
    else
      setAccess(access() & ~ACCFinal);
  }

  /**
   * Is the member private?
   */
  final public boolean isPrivate() {
    return (access() & ACCPrivate) != 0;
  }

  /**
   * Is the member protected?
   */
  final public boolean isProtected() {
    return (access() & ACCProtected) != 0;
  }

  /**
   * Is the member public?
   */
  final public boolean isPublic() {
    return (access() & ACCPublic) != 0;
  }

  /* These are expected to be implemented by subtypes */

  /**
   * Return the access flags for the method - see VMConstants
   */
  abstract public int access();

  /**
   * Set the access flags for the method - see VMConstants
   */
  abstract public void setAccess(int newAccess);

  /**
   * Return the name of the member
   */
  abstract public ConstUtf8 name();

  /**
   * Return the type signature of the method
   */
  abstract public ConstUtf8 signature();

  /**
   * Return the attributes associated with the member
   */
  abstract public AttributeVector attributes();

}


